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Mathematical Biosciences and Engineering

2006, Volume 3, Issue 2: 385-387. doi: 10.3934/mbe.2006.3.385
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Remark on the Paper by Rao And Kakehashi (2005)

  • 1.
    Department of Statistics, University of Nebraska, Lincoln, Nebraska 68583
  • Received: 01 January 2006 Accepted: 29 June 2018 Published: 01 February 2006

  • MSC : 92A15, 62A10.

  • The paper by Rao and Kakehashi [1] uses the Weibull distribution (given by equation (3) in the paper) and a truncated version of it (given by equations (4) and (5)) to model HIV/AIDS data in India. After a careful reading, I have found that all of the results presented in the appendix are incorrect (starting with equation (11) itself). Instead of pointing out all of the specific errors, I have chosen to give the correct formulas (and a brief outline of their derivation) for the rth moment of the truncated Weibull distribution.

    Citation: Saralees Nadarajah. Remark on the Paper by Rao And Kakehashi (2005)[J]. Mathematical Biosciences and Engineering, 2006, 3(2): 385-387. doi: 10.3934/mbe.2006.3.385

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  • The paper by Rao and Kakehashi [1] uses the Weibull distribution (given by equation (3) in the paper) and a truncated version of it (given by equations (4) and (5)) to model HIV/AIDS data in India. After a careful reading, I have found that all of the results presented in the appendix are incorrect (starting with equation (11) itself). Instead of pointing out all of the specific errors, I have chosen to give the correct formulas (and a brief outline of their derivation) for the rth moment of the truncated Weibull distribution.


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  • © 2006 the Author(s), licensee AIMS Press. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0)
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  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

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